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Help calculating DCR

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Old 02-07-2011, 03:34 PM
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Default Help calculating DCR

Can someone help me calculate my DCR. There was a nice thread that I used but the link no longer works.

I have a stock LS1 with a Speed Inc SI5 cam: 231/237 .589/.595 112+4.

I want to put PRC LS6 stage 2.5 heads on.

Assuming 0.058 head gasket thickness what will my DCR be with:

59cc
60cc
61cc
62cc

Thanks in advance!!!
Old 02-07-2011, 03:42 PM
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need the .006 lift duration values
Old 02-07-2011, 03:46 PM
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Shoot. That link I used to use had all that info in it. Let me get it. It's a comp profile.
Old 02-07-2011, 03:51 PM
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I got the cam card:

Duration at .006 is 279 Intake and 285 Exhaust

Card say intake valve closes at 43 ABDC
Old 02-07-2011, 04:01 PM
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Originally Posted by Dragula
Can someone help me calculate my DCR. There was a nice thread that I used but the link no longer works.

I have a stock LS1 with a Speed Inc SI5 cam: 231/237 .589/.595 112+4.

I want to put PRC LS6 stage 2.5 heads on.

Assuming 0.058 head gasket thickness what will my DCR be with:

59cc >8.76
60cc >8.65
61cc >8.54
62cc >8.43
Thanks in advance!!!
In red
Old 02-07-2011, 05:39 PM
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Thanks!!!



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